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Two-factor authentication
1.
Two Factor Authentication cryptoparty @hsgr by ebal 1
2.
How am I ? ● http://ebalaskas.gr (blog/wiki) ● @ebalaskas twitter/identica ● plz interrupt during this awesome talk ● this presentation has only 8 pages! 2
3.
Whats the problem ? ● My Pin/Password is: 123456 ● My Pin/Password is: r(>X5^&3Z*;evqxJ9&=1$ ● Login Site saves passwords cleartext or unsalted ● Login Site is not over httpS ● This isnt my PC ! ● This is a public network ● I use my android/iphone/etc 3
4.
What is the ideal ? ● Different Passwords for different accounts ! – – ● ● ● Predefined list ? Sync ? Could i use something that i dont have to type ? Is it possible to use something i have and something to type ? Is it possible the password changes automaticaly every minute? 4
5.
Do i need to use my eye ? ● Yes and No – you can use biometrics but do you really want to put your eye/finger to a hole? ● Cryptotokens ● ibuttons ● Smart cards (bank cards) ● Usb (yubikey) 5
6.
hardware 6
7.
Plz tell me some acronyms ● OTP ● RFC 2289 ● OTPW ● http://www.cl.cam.ac.uk/~mgk25/otpw.html ● HOTP ● RFC 4226 ● TOTP ● RFC
6238 A One-Time Password System ● A one-time password login package ● An HMAC-Based One-Time Password Algorithm ● Time-Based One-Time Password Algorithm ● 7
8.
Questions ? http://gr.linkedin.com/in/evaggelosbalaskas 8
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